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OROGENICO [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-01-17

English

Subject field(s)
  • Plate Tectonics
DEF

The undifferentiated rocks, commonly igneous and metamorphic, that underlie the rocks of interest, commonly sedimentary, in a given area.

OBS

In many regions, the basement is of Precambrian age, but it may be much younger.

OBS

In Canada, the term "bedrock" is used as a synonym of "basement" to design the Precambrian rocks known as the Canadian Shield, since these rocks are both the basement and the bedrock.

OBS

basement; basement complex: terms used at Natural Resources Canada - Earth Sciences Sector.

PHR

Archean basement.

French

Domaine(s)
  • Tectonique des plaques
DEF

Ensemble géologique de grandes dimensions appartenant au niveau structural inférieur, souvent induré par métamorphisme et granitisation et sur lequel, après pénéplanation, repose en discordance une couverture sédimentaire.

CONT

Les terrains du socle sont plus anciens que ceux de la couverture [...] Le socle n'a donc pas la même structure que sa couverture on dit qu'il y a discordance [...] Le socle, ayant subi une orogenèse, est souvent riche en terrains métamorphiques et granitiques [...]

OBS

socle; basement : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

PHR

Socle archéen.

Spanish

Campo(s) temático(s)
  • Tectónica de placas
DEF

Conjunto de terrenos antiguos cristalinos, muy granitizados y metamorfizados, que constituyen una plataforma rígida parcialmente recubierta por terrenos sedimentarios más recientes.

CONT

Un zócalo no es sino una parte consolidada de la corteza terreste en la cual existieron cordilleras que han sido luego arrasadas por la erosión una vez concluido el proceso orogénico.

Save record 1

Record 2 2011-11-22

English

Subject field(s)
  • Geomorphology and Geomorphogeny
  • Plate Tectonics
DEF

The formation of mountains by the folding and deformation of the Earth's crust.

CONT

In the framework of plate tectonics, orogeny occurs primarily at the boundaries of colliding plates, where marginal sedimentary deposits are crumpled and magmatism and volcanism are initiated.

OBS

Response to such engagement results in the formation of long tracts of highly deformed rock called orogens or orogenic belts.

OBS

orogeny: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géomorphologie et géomorphogénie
  • Tectonique des plaques
DEF

Ensemble des processus menant à la formation des montagnes comme le plissement, le chevauchement et la formation de failles dans les couches de roche.

OBS

orogenèse; orogénie : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Geomorfología y geomorfogénesis
  • Tectónica de placas
DEF

Generación de relieve, en forma de montañas, que sucede al plegamiento orogénico una vez que, terminado éste, comienza la fase de recuperación del equilibrio isostático.

Save record 2

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